Re: 574D fuel return check valve

Posted by Old Dutch on April 03, 2005 at 13:35:02 from (66.168.27.206):

In Reply to: 574D fuel return check valve posted by I can't use even my name on April 02, 2005 at 14:04:36:

Tell you why that check valve was installed their. It is to maintain a slight amount of pressure buildup on the pump for lubrication purposes. With it out of there you you will get some aeration in the pump. If you think about years back the truckers would pinch off the return line to get more power and speed on their trucks. So you suit yourself as to wether to replace or not. Bet when that pump needs work you will know why it was there. Those pumps are quite expensive to repair. Bosch has their reasons. Good luck.

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• Re: 574D fuel return check valve I can't use even my name 19:46:21 04/03/05 (0)

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